\begin{tabular*}{1.7\textwidth}{l@{\extracolsep{\fill}}*{8}{c}}
\toprule
& \multicolumn{1}{c}{\textbf{OVERALL}} & \multicolumn{4}{c}{\textbf{WORK}} & \multicolumn{3}{c}{\textbf{WELL-BEING}}\\
\cmidrule(lr){2-2}\cmidrule(lr){3-6}\cmidrule(lr){7-9} & \textbf{Index} & \textbf{Earnings} & Productivity & Labor Supply & Output  & \textbf{Index} & Physical & Mental \\
 & (1) & (2) & (3) & (4) & (5) & (6) & (7) & (8) \\
\midrule
\textbf{Devices+Encouragement Only} & 0.00 & -0.07** & -0.02 & -0.06 & -0.07**  & 0.13** & 0.16** & 0.02 \\
& (0.07) & (0.03) & (0.03) & (0.04) & (0.03)  & (0.05) & (0.07) & (0.09) \\
\addlinespace
\textbf{Devices+Incentives Only} & -0.05 & -0.07* & -0.02 & -0.08* & -0.08**  &  0.05 & 0.08 & -0.02 \\
 & (0.07) & (0.04) & (0.03) & (0.04) & (0.03)  & (0.05) & (0.06) & (0.09) \\
\addlinespace
\textbf{Nap Only} & 0.11 & -0.07 & -0.01 & -0.07* & -0.05  & 0.18*** & 0.16** & 0.19* \\
& (0.07) & (0.04) & (0.03) & (0.04) & (0.04) & (0.06) & (0.07) & (0.10) \\
\addlinespace
\textbf{Devices+Encouragement and Nap} & 0.13* & -0.07* & 0.04 & -0.15*** & -0.04  & 0.13** & 0.11* & 0.11 \\
 & (0.07) & (0.04) & (0.03) & (0.04) & (0.03)  & (0.05) & (0.06) & (0.09) \\
\addlinespace
\textbf{Devices+Incentives and Nap} & 0.08 & -0.07* & 0.04 & -0.17*** & -0.07**  & 0.10** & 0.11* & 0.07 \\
 & (0.06) & (0.04) & (0.03) & (0.04) & (0.03)  & (0.05) & (0.07) & (0.09) \\
\addlinespace
\midrule
Participants & 451 & 451  & 451 & 451 & 451  & 452 & 452 & 452 \\
\end{tabular*}
